From One RV Friend to Another:
“Lock Your Fuel Doors.”
I put The RV Fuel Vault on my own rig — the only purpose-built locking fuel door for RVs — and I'm sharing it with the people I road-trip and camp with.
Use code RVFRIENDS and save $10 per door
Why Fellow RV Friends Swear By It
We've all parked at a campground or storage lot and wondered about our fuel. The RV Fuel Vault is the simple upgrade that finally puts that worry to rest.
Fuel Theft Protection
A tamper-resistant keyed lock stops siphoning and vandalism. No more worrying about your fuel at campgrounds or storage.
Contamination Defense
Seals your entire filler neck area against water, road grime, sugar, and contaminants that cause expensive repairs.
Factory-Finished Look
Covers that ugly exposed fuel cap with a clean, professional finish. The part the factory forgot.
8–15 Minute Install
No drilling, no cutting, no body mods. Bolts on over your existing filler neck with basic hand tools.
Lifetime Warranty
High-strength UV-resistant polymer built to last. Backed by a Limited Lifetime Warranty.
Free Shipping
Ships from our Missouri facility. Free standard shipping on every order. Made in the USA.
See the Difference
This is what most of our rigs roll off the lot with: an exposed, unprotected fuel cap. The RV Fuel Vault changes that.
❌ Before — Exposed & Vulnerable
✅ After — Locked & Protected
Fits Your RV — Whatever You Drive or Tow
The RV Fuel Vault works across every major RV type. Use the fitment finder to confirm your exact model.
Class A Motorhomes
Ford F53, Workhorse chassis & more
Class B Campervans
Ram ProMaster, Ford Transit & more
Class C Motorhomes
Ford E-350/E-450, F-550/F-600 & more
Toy Haulers
Fuel cap protection for your hauler
Travel Trailers
DEF & fuel cap protection for your tow vehicle
Fifth Wheels
Protect the truck that pulls your 5th wheel
RV Friends Discount: $10 Off Per Door
Use code RVFRIENDS at checkout — or just order through this page and it's applied automatically.
Free shipping • 30-day satisfaction guarantee • Limited Lifetime Warranty
From one RV friend to another:
“I added these to my own rig and honestly wish they came standard. That exposed fuel cap always bugged me — it's a security risk, a contamination risk, and it looks unfinished. The RV Fuel Vault fixed all three in about ten minutes. If you camp, travel, or store your RV like I do, do yourself a favor and get one.”
— A fellow RV friend & RV Fuel Vault partner